Larger Image Two separate voltage outputs can be obtained in each fully enclosed unit. Independent brush contacts are mounted on a common shaft 90 degrees apart to provide accurate sine and cosine outputs. Any practical number of ganged units are available with individual sections in simultaneous function or other conformity. Precious metal brush and collector contacts are used exclusively. Paliney or gold alloy brush materials are matched with the resistance wire selected for a given value to insure maximum life. Terminals and slip rings are hard gold plated.